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<?php
declare(strict_types=1);
namespace PhpOffice\PhpSpreadsheetTests\Writer\Html;
use PhpOffice\PhpSpreadsheet\Reader\Xlsx as XlsxReader;
use PhpOffice\PhpSpreadsheet\Writer\Html as HtmlWriter;
use PHPUnit\Framework\TestCase;
class BadCustomPropertyTest extends TestCase
{
public function testBadCustomProperty(): void
$reader = new XlsxReader();
$infile = 'tests/data/Reader/XLSX/sec-q229.dontuse';
$spreadsheet = $reader->load($infile);
$writer = new HtmlWriter($spreadsheet);
$html = $writer->generateHtmlAll();
self::assertStringContainsString('<meta name="custom.string.custom_property"><img src=1 onerror=alert()>" content="test" />', $html);
$spreadsheet->disconnectWorksheets();
}